让NexusPHP支持更多缓存

PT代码NexusPHP要运行于Memcache环境下,以保证PT性能
但由于有时候Memcache不好用或者更喜欢用其他缓存
因此需要NexusPHP支持更多缓存
(windows+iis下我推荐使用wincache)

 

class WinCache{


function pconnect($host, $port){
if(extension_loaded('wincache'))
return true;
}


function delete($Key){
wincache_ucache_delete($Key);
}

function set($Key,$Value,$What,$Duration){
wincache_ucache_set($Key,$Value,$Duration);
}

function get($Key){
return wincache_ucache_get($Key);

if(wincache_ucache_exists($Key))
return wincache_ucache_get($Key);
else
return false;
}

}


class APCCache{

function pconnect($host, $port){
if(extension_loaded('apc'))
return true;
}

function delete($Key){
apc_delete($Key);
}

function set($Key,$Value,$What,$Duration){
apc_store($Key,$Value,$Duration);
}

function get($Key){
if(apc_exists($Key))
return apc_fetch($Key);
else 
return false;
}

}


class XCache{//待测试


function pconnect($host, $port){
if(extension_loaded('xcache'))
return true;
}

function delete($Key){
xcache_unset($Key);
}

function set($Key,$Value,$What,$Duration){
xcache_set($Key,$Value,$Duration);
}

function get($Key){
if (xcache_isset($Key))
return xcache_get($Key);
else 
return false;
}

}


class eAccelerator{//待测试


function pconnect($host, $port){
if(extension_loaded('eaccelerator'))
return true;
}



function delete($Key){
eaccelerator_rm($Key);
}

function set($Key,$Value,$What,$Duration){
eaccelerator_put($Key,$Value,$Duration);
}

function get($Key){
return eaccelerator_get($Key);
}

}


class FileCache{ 
/*
cleanup.php


$dp = @opendir('cache');
while (($file = readdir($dp)) !== false){
if(time() - filemtime('cache/'.$file) > 24*3600)@unlink('cache/'.$file);
}
closedir($dp);
*/  
    private $lifetime = 3600;
    private $path = 'cache';

    function set($name,$value,$What,$time=0){
   if($time) $this->lifetime = $time;
        $filename = $this->path.'/'.$name.'.cache';
        //@unlink($filename);
        $valuecache['cache'] = $value;
$valuecache['cachetimeuntil']=time()+$this->lifetime;
        $array = "";
        $strlen = file_put_contents($filename, $array);
        @chmod($filename, 0777);
        return $strlen;
    } 


    function get($name){
$filename = $this->path.'/'.($name).'.cache';
if(!file_exists($filename))return false;
            include_once $filename;
if($filecache[$name]['cachetimeuntil']>time())
            return $filecache[$name]['cache'];
else
return false;
   } 

    function delete($name){
        $filename = $this->path.'/'.($name).'.cache';
        @unlink($filename);
} 
  
    function pconnect(){
        return true;
    }
}


class SqlCache {
/*
CREATE TABLE `sqlcache` (
  `id` int(10) NOT NULL AUTO_INCREMENT,
  `keyname` char(128) NOT NULL,
  `keyvalue` text NOT NULL,
  `deadtime` int(10) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `keyname` (`keyname`),
  KEY `deadtime` (`deadtime`)
) ENGINE=MyISAM AUTO_INCREMENT=5437 DEFAULT CHARSET=utf8;


//////////////////////////////////////////////////////////////
cleanup.php
sql_query("DELETE from sqlcache where deadtime <".time());
*/
function pconnect(){
        return true;
    }


function get($key) {
$cache = sql_query("SELECT * FROM  sqlcache WHERE keyname=".sqlesc($key));
if(!$cache)return false;
$data = mysql_fetch_assoc($cache);

if($data['deadtime'] < time())
return false;

return $data['keyvalue'];
}


function set($key, $value,$What, $life) {
$key=sqlesc($key);
$value=sqlesc($value);
$life=sqlesc($life+time());
return sql_query("INSERT INTO sqlcache (keyname,keyvalue,deadtime) VALUES ( $key , $value , $life ) ON DUPLICATE KEY update keyvalue=values(keyvalue) ,deadtime=values(deadtime) ");
}


function delete($key) {
$key=sqlesc($key);
return sql_query("DELETE from sqlcache where keyname = $key");
}
}


class NoCache{//待测试
function pconnect($host, $port){return true;}
function delete($Key){}
function set($Key,$Value,$What,$Duration){}
function get($Key){}
}

添加以上代码到class_cache.php,并修改
class CACHE extends Memcache
中的Memcache为
//WinCache{//Memcache{//APCCache{//XCache{//eAccelerator{//FileCache{//SqlCache{//NoCache
即可实现对应缓存的支持
其中 sql以及 file需要按照对应代码注解创建所需数据库或者文件夹